package com.lagou.edu.mvcframework.filter;


import javax.servlet.*;
import java.io.IOException;

public class LagouCharacterEncodingFilter implements Filter {

    private String encoding;

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        String encoding = filterConfig.getInitParameter("encoding");
        this.encoding=encoding;

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        request.setCharacterEncoding(encoding);
        response.setCharacterEncoding(encoding);
        response.setContentType("text/html;charset=utf-8");
        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {

    }
}
